Ubuntu
unity8 package

  1. Bug #1421308
  2. Comment #2

Comment 2 for bug 1421308

Revision history for this message
Alberto Aguirre (albaguirre) wrote : Re: Yet another Mir deadlock

This doesn't seem related to mir code - it looks more like a flaw with Qt DBus/QMutex .

From the gdb dump, Thread 11 is waiting on a Qt signal to be dispatched (BlockedQueuedConnection), so an event is posted to the main thread (Thread #1) which should signal the semaphore given.

Thread 1 seems to be responding to a DBus event waiting on a mutex lock through syscall(__NR_futex, FUTEX_WAIT,....)

It's not apparent from the gdb dump why Thread #1 is stuck there.